Factorise:
Factorise:p4 - 81
We have p4 - 81 = (p2)2 - (92)2 Now using a2 - b2 = (a + b)(a - b), we have (p2)2 - (9)2 = (p2 + 9)(p2 -9)We can factorise p2 - 9 further as p2 - 9 = (p)2 - (3)2 = (p + 3)(p - 3)
∴ p4 - 81 = (p + 3)(p - 3)(p2 + 9)
Factorise:x4 - (y + z)4
Factorise:a4 - 2a2b2 + b4
Factorise the following expressions.p2 + 6p +8
Factorise the following expression:q2 - 10q + 21
Factorise the following expression:p2 + 6p - 16
Factorise x2 + 8x + 16.
x2 – 12y + 9.
Factorise 49y2 – 36.
Short Answer Type
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